弹性函数是研究当自变量有微弱变化时，函数的相对变化率。
Elastic function is the research into the relative change rate of the function where the independent variable has a slight change.
从空间上看，浙江省不同地区各土地利用类型相对变化率各有差异。
Point of view from space, the relatively change rate of land use type of different district in Zhejiang province is different.
土地利用类型的相对变化率是一种反映土地利用变化地区差异性的指标。
The relative change rate of land use type is an index reflecting regional difference of change of land use .
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